William mcshane



(Model) w. MoSHANE. INJECTOR.

Patented May 3,'1887;

r. Washington D C UNITED, STATES PATENT OFFICE.

wiLLIAM MoSHANE, on ST. JOHN, NEW BRUNSWICK, CANADA, ASSIGNOR TO T.MOAVITY & sons, on SAME PLACE.

INJECTOR.

SPECIFICATION forming part of Letters Patent No. 362,300, dated May 3,1887. Application filed March 19, 1886. Serial No. 195,847. (Model) Toall whom it may concern: 7

Be it known that I, WILLIAM MOSHANE, a subject of Queen Victoria,residing at St. John, in the city and county of St. John, in the 5Province of New Brunswick, Canada, have invented certain new and usefulImprovements in Steam-Pumps of the kind commonly called Injectors, ofwhich the following is a specification.

[ My improvements are more. especially applicable to the Hancock orother double injector in which one part acts as a lifter for the water,which it delivers under a moderate pressure to the second part orforcer, which drives it on, exertinga comparatively high pressure.

The object of my invention is to simplify the working, rendering italmost automatic, and making its action much more perfect. The so-ealled automatics are complicated,

or require careful regulation of the steam and water supply; and willnot work satisfactorily with wet or low steam and under a greatvariation of pressure.

The drawings attached show my improve- 2 5 ments applied to a Hancockinspirator.

Figure 1 shows the whole instrument in sectional elevation. Figs. 2 and3 show, separately and respectively, the hollow puppetvalve and the nutfor confining iton the forcer.

combiningtube. Fig. 4 shows an alternative form of hollow puppet slidingin the casing B. Fig. 5 shows the lever L, with parts attached, in plan.

In describing the operation of the instrument the use of the differentparts will be evi dent.

The connections S, NV, and D communicate, respectively,with thesteam-supply, the watersupply, and the delivery to boiler or otherrequired receptacle, and, supposing these passages to be opened, thesteam enters into the chamber S (the valve 0 being supposed at first tobe closed and the valve 1' opened,) it then blows-through the liftersteam-nozzle a into and 5 through the lifter combining-tube b, and inpassing over the interval at 9 it draws with it the air and water, thussucking water up'into and through the pipe W and chamber g, andcombining with it in the combining-tube b, and delivering it in thechamber J under a comparatively low pressure, whence it finds its wayinto the chamber C and through the forcer combining'tube d, and alsothrough the l0w-pressure opening 0 into the delivery-pipe D, and thencethrough the main overflow O. Next the lever L is gradually moved, (notgenerally and necessarily very slowly,) opening the steam-valve o in'thesteam-chamber S and closing the T-valve r of the main overflow 0; but itis so adjusted that the valve o is opened before the valve 0* is closed.

As soon as the valve 12 is opened the steam rushes through the forcersteam-nozzle 0 into and through the forcer combining-tube d, and inpassing the interval 0 it draws and impels the water at a greatly-increased rate and pressure, driving it out of the overflow O, on theclosing of which, and probably prior to that, the hollow puppet p, whichis shown with double seat at p and 10 is forced shut, thus cutting offthe low-pressure overflow O and preventing any water from finding itsway back from the delivery-pipe D, thus delivering all the water at highpressure. A nut is shown at n on the end of the forcer combining-tube 7d to keep the hollow puppet 1) in position; or the hollow puppet may bemade as shown in Fig. 4, sliding in the casing B, and having the two"seats 12 and 9' corresponding to those shown in Figs. 1 and 2.

The lever L is shown pivoted at e on a standard, 6, attached to aprojection on the casing B, and connected by an elongated hole withpivot, at 12 to the stem o of the valve 2;. It is also connected bypivot r to the link W, which, at its other end, is movably connectedwith the spindle r of the Valve 1* by the joint 1. The lever L may haveany form of convenient handle at h. Fig. 5 shows the'lever L and partsattached in plan with a clamping-nut, W, on the pivot-connection r, bywhich the parts may be locked in any required position.

I make no claim for the lifter and forcer tubes, nor their combinationin the casing A B, nor for the overflows O and 0, nor for the sep- 9 5arate valves '0 and r, nor a perforated base or diaphragm for thecombining or delivery tube, nor the annular valve automatically openingor closing such perforations or ports; nor do I claim thecombination ofa lever operating I00 both the steam and overflow valves, both being inthe body or easing of the injector proper, for I am aware that they arenot new; but

XVhat I do claim as my invention, and desire to secure by LettersPatent, is-

1. The combination of the lever L with the steam-valve v in the injectorand the T or corresponding overflow-valve 1' in the deliverypipe D, in afitting distinct and separate from the body or casing of the injector,so that 1) opens before 1* closes, as and for the purpose described,

A 2. The combination of the lever L with the spindle of valve 1;,connected by loose coupling v and with the standard E, attached to thecasing of the injector, and with the spindle of the valve 1 by thecoupling 1', and the swinging link 1- and movable coupling 1, or corresponding device, as and for the purpose described.

3. The combination of the steanrvalve o in an injector and theoverflow-valve 1' in the dclivery-pipe, in a fitting distinct andseparate from the body or casing of the injector, and the lever L, withthe puppet p in the deliv- 25 cry-chamber D", all as and for the purposedescribed.

WM. MCSI-IANE.

\Vitnesses:

J. S. ARMSTRONG, TncmAs MoAvrrY, J r,

